Single-header file picker Windows library for ImGui.

How to use

int renderFilePicker(wchar_t* userPath, bool* windowOpen, int windowFlags = 0) {

Call int fp::renderFilePicker(wchar_t* userPath, bool* windowOpen, int windowFlags = 0); within the render loop providing a pre-allocated C-string buffer of MAX_PATH characters in userPath. windowOpen must be initially set to true, and will set itself to false when execution is done. If succesful, your buffer will contain a valid path. You can check the file picker state each frame by parsing this function's return value. You can provide windowFlags to customize its appearance.

Window states

	- fp::ExitFlags::EXIT_CONTINUE : Window will render next frame. 
	- fp::ExitFlags::EXIT_SELECTED : A path has been successfully returned, window will close.
	- fp::ExitFlags::EXIT_CLOSED   : User has closed the window. No path is returned.
	- fp::ExitFlags::EXIT_ERROR    : An unexpected error has ocurred. No path is returned.

Valid window flags

   - fp::WindowFlags::FP_FULLSCREEN`: Render window in full screen, without decorations.

Library dependencies

• C++ STL: This library uses vector and w\string.

Build considerations

Define DEBUG to print relevant information to the console.

Demo build instructions

Build requirements

• GLFW v3: used as rendering backend. Executable in releases is compiled with version 3.3.8.
• Compiled with clang using llvm-mingw 20220906.

How to compile

Download GLFW and pick your libraries according to your toolchain(mingw-w64 in this example).

Then, call your compiler directly (clang is demonstrated here) specifying both libs needed and your paths to the necessary header and lib files:

clang++ demo/main.cpp -o demo/demo.exe -L C:/pathtollvmmingw/x86_64-w64-mingw32/bin -I C:\pathtollvmmingw\include -L C:/pathtoglfw/lib-mingw-w64 -I C:\pathtoglfw\include -lglfw3 -l libc++

If you want to statically link:

 clang++ demo/main.cpp -o demo/si.exe -DDEBUG -L C:\capybara\libclang\x86_64-w64-mingw32\bin -L C:\capybara\libclang\x86_64-w64-mingw32\lib -I C:\capybara\libclang\include -std=c++17 -lglfw3 -l opengl32 -l gdi32 -l user32 -l kernel32 -l imm32 -static-libstdc++  --verbose

Add -DDEBUG to print filepicker's debug information, if you so desire.

To-Dos

• Implement a file watcher to check for changes on the current directory.
• Add Linux support.
• Allow users to provide their own memory allocations as an option.